Detailed description of iperf3 parameter options

iperf3 Parameter options are described in detailiperfThe official website has English documents,This article is translated as needed and recorded,供读者查阅！！！
iperf3 The options are divided into3个类型：常规选项、服务器特定选项、Client specific options

一、常规选项

常规选项
命令行选项	描述
-p, --port n	Specify the port on which the server listens and the port on which the client connects,This port is required to be the same on the server and client,默认是5021
--cport n	Option to specify the client port. （iPerf 3.1 中的新功能）
-f, --format [kmKM]	Character used to specify the print bandwidth number format.支持的格式有 'k' = Kbits/sec ;'K' = KBytes/sec ;'m' = Mbits/sec ;'M' = MBytes/sec The adaptive format chooses between gigabits and megabytes as needed.
-i, --interval n	Set periodic bandwidth、The interval between jitter and loss reports（以秒为单位）.如果非零,The bandwidth is reported every interval seconds since the last report. 如果为零,Periodic reports are not printed. 默认为零.
-F, --file name	客户端：Read from file and write to network,instead of using random data; 服务器端：Read and write files from the network,rather than discarding the data.
-A, --affinity n/n,m-F	如果可能,设置 CPU 亲和性（仅限 Linux 和 FreeBSD）.在客户端和服务器上,can use this parameter n 形式（其中 n 是 CPU 编号）Set local affinity.此外,在客户端,您可以使用 n,m A parameter of the form overrides the server's affinity for that test.请注意,使用此功能时,Processes will only be bound to a single CPU（and contains potentially multiple CPU collection is the opposite）.
-B, --bind host	绑定到主机,One of the addresses of this machine. 对于客户端,This will set the outbound interface. 对于服务器,This will set the incoming interface. This is only useful for multihomed hosts with multiple network interfaces.
-V, --verbose	gives more verbose output
-J, --json	以 JSON 格式输出
--logfile file	Send output to a log file. （iPerf 3.1 中的新功能）
--d, --debug	Emit debug output. 主要（may be specialized）供开发人员使用.
-v, --version	显示版本信息并退出.
-h, --help	Display the help summary and exit.

二、服务器特定选项

服务器特定选项
命令行选项	描述
-s, --server	在服务器模式下运行 iPerf. （一次只允许一个 iperf 连接）
-D, --daemon
-I, --pidfilefile

三、服务器特定选项

Customer specific options
命令行选项	描述
-c, --client host
--sctp
-u, --udp
-b, --bandwidth n[KM]
-t, --time n
-n, --num n[KM]
-k, --blockcount n[KM]
-l, --length n[KM]
-P, --parallel n
-R, --reverse
-w, --window n[KM]
-M, --set-mss n
-N, --no-delay
-4, --version4
-6, --version4
-S, --tos n
-L, --flowlabel n
-Z, --zerocopy
-O, --omit n
-T, --title str
-C, --linux-congestion algo